GB8909555D0 - Laser apparatus - Google Patents

Laser apparatus

Info

Publication number
GB8909555D0
GB8909555D0 GB898909555A GB8909555A GB8909555D0 GB 8909555 D0 GB8909555 D0 GB 8909555D0 GB 898909555 A GB898909555 A GB 898909555A GB 8909555 A GB8909555 A GB 8909555A GB 8909555 D0 GB8909555 D0 GB 8909555D0
Authority
GB
United Kingdom
Prior art keywords
electrodes
copper
envelope
laser
laser apparatus
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
GB898909555A
Other versions
GB2219128A (en
GB2219128B (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Teledyne UK Ltd
Original Assignee
EEV Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=10637443&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=GB8909555(D0) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by EEV Ltd filed Critical EEV Ltd
Publication of GB8909555D0 publication Critical patent/GB8909555D0/en
Publication of GB2219128A publication Critical patent/GB2219128A/en
Application granted granted Critical
Publication of GB2219128B publication Critical patent/GB2219128B/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
    • H01S3/02—Constructional details
    • H01S3/03—Constructional details of gas laser discharge tubes
    • H01S3/031—Metal vapour lasers, e.g. metal vapour generation

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Optics & Photonics (AREA)
  • Lasers (AREA)
  • Laser Surgery Devices (AREA)

Abstract

Metal vapour laser apparatus includes an envelope 1 within which is contained electrodes 4 and 5 and a plurality of cylindrical copper segments 6 arranged between the electrodes 4 and 5. During operation of the laser, bromine and helium buffer gas are arranged to flow through the envelope 1, causing copper bromide to be produced. When a discharge is established between the electrodes 4 and 5, the copper bromide vaporizes and dissociates to give copper vapour which is then excited to produce a population inversion. Such apparatus is able to operate at relatively low temperatures, in the region of 600<o>C.
GB8909555A 1988-05-24 1989-04-26 Laser apparatus Expired - Lifetime GB2219128B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB888812276A GB8812276D0 (en) 1988-05-24 1988-05-24 Laser apparatus

Publications (3)

Publication Number Publication Date
GB8909555D0 true GB8909555D0 (en) 1989-06-14
GB2219128A GB2219128A (en) 1989-11-29
GB2219128B GB2219128B (en) 1992-04-22

Family

ID=10637443

Family Applications (2)

Application Number Title Priority Date Filing Date
GB888812276A Pending GB8812276D0 (en) 1988-05-24 1988-05-24 Laser apparatus
GB8909555A Expired - Lifetime GB2219128B (en) 1988-05-24 1989-04-26 Laser apparatus

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB888812276A Pending GB8812276D0 (en) 1988-05-24 1988-05-24 Laser apparatus

Country Status (6)

Country Link
US (1) US4955033A (en)
EP (1) EP0343795B1 (en)
AT (1) ATE100974T1 (en)
AU (1) AU615066B2 (en)
DE (1) DE68912647T2 (en)
GB (2) GB8812276D0 (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8812276D0 (en) * 1988-05-24 1988-06-29 English Electric Valve Co Ltd Laser apparatus
FR2665582B1 (en) * 1990-07-11 1995-03-24 Saint Louis Inst METAL STEAM LASER SOURCE.
GB9018421D0 (en) * 1990-08-22 1990-10-03 British Nuclear Fuels Plc Improvements in lasers
US5283800A (en) * 1991-03-27 1994-02-01 Kabushiki Kaishatoshiba Metal vapor laser apparatus and method
GB2262184B (en) * 1991-11-07 1995-06-07 Mitsubishi Electric Corp Pulse laser apparatus
GB2269266B (en) * 1992-07-30 1995-11-22 Eev Ltd Metal vapour laser apparatus
US5504770A (en) * 1993-12-27 1996-04-02 The United States Of America As Represented By The Secretary Of The Navy Liquid metal confinement cylinder for optical discharge devices
US5351260A (en) * 1994-03-14 1994-09-27 The United States Of America As Represented By The Secretary Of The Navy Thoriated-tungsten, split-ring, hollow-cathode electrode for discharge devices
FR2743204B1 (en) * 1996-01-03 1998-02-13 Commissariat Energie Atomique METAL VAPOR LASER DEVICE
AUPN813596A0 (en) * 1996-02-16 1996-03-07 Macquarie Research Limited Metal vapour laser
CN100423387C (en) * 2006-09-01 2008-10-01 浙江大学 Discharge electrode with capture device
JP5927218B2 (en) * 2014-03-12 2016-06-01 ファナック株式会社 Laser oscillator including discharge tube, and laser processing apparatus

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3934211A (en) * 1973-03-09 1976-01-20 Westinghouse Electric Corporation Metal halide vapor laser
US3936772A (en) * 1973-03-09 1976-02-03 Westinghouse Electric Corporation High flow metal halide vapor laser
US3891941A (en) * 1974-01-25 1975-06-24 Us Army Imploding cylinder metal vapor laser
US4126833A (en) * 1977-01-21 1978-11-21 Westinghouse Electric Corp. High repetition rate metal halide laser
US4347613A (en) * 1980-03-14 1982-08-31 Nasa Method and apparatus for convection control of metallic halide vapor density in a metallic halide laser
EP0144475A1 (en) * 1983-12-12 1985-06-19 English Electric Valve Company Limited Improvements in discharge tubes
GB8812276D0 (en) * 1988-05-24 1988-06-29 English Electric Valve Co Ltd Laser apparatus

Also Published As

Publication number Publication date
ATE100974T1 (en) 1994-02-15
DE68912647D1 (en) 1994-03-10
GB8812276D0 (en) 1988-06-29
EP0343795A1 (en) 1989-11-29
EP0343795B1 (en) 1994-01-26
AU615066B2 (en) 1991-09-19
AU3507289A (en) 1989-11-30
US4955033A (en) 1990-09-04
DE68912647T2 (en) 1994-05-11
GB2219128A (en) 1989-11-29
GB2219128B (en) 1992-04-22

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19990426